SG189 - Power & Charging Related
To charge the glasses, simply connect the included USB cable from the glasses to a power source. You can plug the USB into your PC or laptop, or use a power adapter to connect with a wall socket. The indicator light will turn red when charging, and turn OFF when fully charged. When charging, please make sure that the magnetic metal pins are properly aligned.
When fully charged, you can enjoy up to 5 hours of premium wireless Bluetooth audio. The Avantree SG189 audio glasses speakers are designed with aptX HD, an advanced technology that activates when used with a Bluetooth device with similar support.